How to use IOCTL calls with QT?

[augusbas]

Hi ,

I Wanna open a I2C device in my Qt program using IOCTL Open() Function. But this open() call gives me error. It tries to look for the function in the class.

"error: no matching function for call to ‘MainMenu:pen(const char [11], int)’
/usr/local/Trolltech/Qt-4.5.0/include/QtGui/qdialog.h:99: note: candidates are: void QDialog:pen()"

Is there any specific way of accesing devices in qt and getting a file descriptor for them. please advise me

[caduel]

this has nothing to do with Qt.

qualify your open call:

::open(...)
std::open(...)

::open(...)
std::open(...)

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depending on what headers you include.

[Thà nh Viên Mới]

this has nothing to do with Qt.

qualify your open call:

::open(...)
std::open(...)

::open(...)
std::open(...)

To copy to clipboard, switch view to plain text mode 

depending on what headers you include.

can you help me call ‘ioctl’ on QT:

../Bto/main.cpp: In function ‘int main()’:
../Bto/main.cpp:26: error: ‘ioctl’ was not declared in this scope
../Bto/main.cpp:32: error: ‘ioctl’ was not declared in this scope

[squidge]

Again, nothing to do with Qt.

Which headers are you including ? Do you include ioctl.h ?